How to store UITableViewCell - ios

I need to get indexPath of cell to delete but my app has auto reload after 2s to check new file so indexpath has changed so I don't get it correctly. Now, I want get cell but I don't know how to store cell. This is my codes:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
//[_tableView clearsContextBeforeDrawing];
static NSString *simpleTableIdentifier = #"SimpleTableItem";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:simpleTableIdentifier];
}
cell.tag = indexPath.row;
if([FileNameArray count] != 0){
CGRect frame = CGRectMake(10, 05, 100, 20);//(20, 0, 80, 40);
UILabel *lbl1 = [[UILabel alloc]initWithFrame:frame];
[lbl1 setFont:[UIFont fontWithName:#"Helvetica" size:15.0]];
[lbl1 setTextColor:[UIColor blackColor]];
[lbl1 setTextAlignment:UITextAlignmentLeft];
lbl1.text = [FileNameArray objectAtIndex:indexPath.row];
[cell addSubview:lbl1];
[lbl1 release];
}
return cell;
}
removeCell function:
-(void) removeCell:(NSIndexPath *)indexPath
{
[_tableView beginUpdates];
[_tableView deleteRowsAtIndexPaths:insertIndexPaths withRowAnimation:UITableViewRowAnimationFade];
// [_tableView reloadData];
[_tableView endUpdates];
}
Do you have suggestions?

Related

iOS How to get button text from tableview cell

I am using simple tableview and i have add button in every cell , The Problem is how to get button text from cell number second and any other cell number get button text i am using this code but its not working
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:1 inSection:0];
UITableViewCell *cell = [tbl_view cellForRowAtIndexPath:indexPath];
for( UITableViewCell *getview in cell.subviews)
{
if([getview isKindOfClass:[UIButton class]])
{
NSLog(#"sdfsdfsd");
// UIButton *button = (UIButton *);
}
}
This code is set button in tableview cell
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *simpleTableIdentifier = #"SimpleTableItem";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
UILabel *fromLabel = [[UILabel alloc]initWithFrame:CGRectMake(60, 5, 250,20)];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:simpleTableIdentifier];
cell=[[UITableViewCell alloc] init];
}
cell.backgroundColor=[UIColor clearColor];
UIButton *button_chaeckbox = [UIButton buttonWithType:UIButtonTypeCustom];
button_chaeckbox.backgroundColor=[UIColor clearColor];
button_chaeckbox.frame = CGRectMake(10, 10, 15, 15);
if( [checkedArray containsObject:[NSString stringWithFormat:#"%ld",(long)indexPath.row]])
{
[button_chaeckbox setBackgroundImage:[UIImage imageNamed:#"checked_checkbox.png"] forState:UIControlStateNormal];
}else
{
[button_chaeckbox setBackgroundImage:[UIImage imageNamed:#"empty_box_b.png"] forState:UIControlStateNormal];
}
[button_chaeckbox setTitle:#"creaButtonname" forState:UIControlStateNormal];
button_chaeckbox.tag=indexPath.row;
[button_chaeckbox addTarget:self
action:#selector(checkboxAction:)
forControlEvents:UIControlEventTouchUpInside];
[cell addSubview:button_chaeckbox];
}
Please give me solution , i have try this code in ios 7 and ios 8 this is not working
Regards,
Nishant Chandwani
Do one thing give tag value for each button like
button_chaeckbox.tag=indexpath.row
in cellForRowAtIndexPath Method .
in checkboxAction do like this
NSString * titleText=sender.titleLabel.text
and you will check in button action method from which cell it is
like using conditions if(sender.tag == //your cell number second value//)
I think you want like this only .
Use this code for reuse cells in table view
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *simpleTableIdentifier = #"SimpleTableItem";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:simpleTableIdentifier];
cell=[[UITableViewCell alloc] init];
UILabel *fromLabel = [[UILabel alloc]initWithFrame:CGRectMake(60, 5, 250,20)];
cell.backgroundColor=[UIColor clearColor];
UIButton *button_chaeckbox = [UIButton buttonWithType:UIButtonTypeCustom];
button_chaeckbox.backgroundColor=[UIColor clearColor];
button_chaeckbox.frame = CGRectMake(10, 10, 15, 15);
[button_chaeckbox addTarget:self
action:#selector(checkboxAction:)
forControlEvents:UIControlEventTouchUpInside];
[cell addSubview:button_chaeckbox];
button_chaeckbox.tag=1001;
}
if( [checkedArray containsObject:[NSString stringWithFormat:#"%ld",(long)indexPath.row]])
{
[button_chaeckbox setBackgroundImage:[UIImage imageNamed:#"checked_checkbox.png"] forState:UIControlStateNormal];
}else
{
[button_chaeckbox setBackgroundImage:[UIImage imageNamed:#"empty_box_b.png"] forState:UIControlStateNormal];
}
}
Use this code for get button from cell
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:1 inSection:0];
UITableViewCell *cell = [tbl_view cellForRowAtIndexPath:indexPath];
UIButton *button_chaeckbox=(UIButton*)[cell viewWithtag:1001]
You can try this
In cellForRowAtIndexPath
[cell.button setTitle:#"RAM" forState:UIControlStateNormal];
cell.button.tag=indexPath.row;
[cell.button addTarget:self action:#selector(cellBtn:) forControlEvents:UIControlEventTouchUpInside];
Selector method
-(void)cellBtn :(UIButton *)sender
{
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:sender.tag inSection:0];
AlertCustomCell *cell = [tableview cellForRowAtIndexPath:indexPath];
NSString *user = cell.button.titleLabel.text;
NSLog(#"Text of button is :%#",user);
}
I hope it will work
let me point out one thing. if you want to traverse through all the subviews of the table cell you have to make for( UITableViewCell *getview in cell.subviews) to for( UIView *getview in cell.subviews)
The code would look like this
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:1 inSection:0];
UITableViewCell *cell = [tbl_view cellForRowAtIndexPath:indexPath];
for( UIView *getview in cell.subviews)
{
if([getview isKindOfClass:[UIButton class]])
{
UIButton *button = (UIButton *)getView;
NSLog #("%#",button.titleLabel.text)
}
}
I would recommend making a UITableViewCell subclass and making the button a a property on that subclass. Then in your code would look something like this.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *simpleTableIdentifier = #"SimpleTableItem";
CustomTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
UILabel *fromLabel = [[UILabel alloc]initWithFrame:CGRectMake(60, 5, 250,20)];
if (cell == nil) {
cell = [[CustomTableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:simpleTableIdentifier];
}
cell.backgroundColor=[UIColor clearColor];
UIButton *button_chaeckbox = [UIButton buttonWithType:UIButtonTypeCustom];
button_chaeckbox.backgroundColor=[UIColor clearColor];
button_chaeckbox.frame = CGRectMake(10, 10, 15, 15);
if( [checkedArray containsObject:[NSString stringWithFormat:#"%ld",(long)indexPath.row]])
{
[button_chaeckbox setBackgroundImage:[UIImage imageNamed:#"checked_checkbox.png"] forState:UIControlStateNormal];
} else {
[button_chaeckbox setBackgroundImage:[UIImage imageNamed:#"empty_box_b.png"] forState:UIControlStateNormal];
}
[button_chaeckbox addTarget:self
action:#selector(checkboxAction:)
forControlEvents:UIControlEventTouchUpInside];
[cell setCellButton:button_chaeckbox];
return cell;
}
And then to get the button:
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:1 inSection:0];
CustomTableCell *cell = (CustomTableCell *)[tbl_view cellForRowAtIndexPath:indexPath];
UIButton * yourButton = cell.CellButton

Table view cell reload first cell content

This is how my table is populated :
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
CellNewsInfo *cell = [tableView dequeueReusableCellWithIdentifier:#"cell"];
if (!cell) {
cell=[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:#"cell"];
}
// Set up the cell
int storyIndex = [indexPath indexAtPosition: [indexPath length] - 1];
NSString *titleArticle=[[stories objectAtIndex: storyIndex] objectForKey: #"title"];
titleArticle = [titleArticle stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
if (indexPath.row==0) {
scr=[[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, 320, 200)];
scr.tag = 1;
scr.autoresizingMask=UIViewAutoresizingNone;
[cell addSubview:scr];
[self setupScrollView:scr];
UIPageControl *pgCtr = [[UIPageControl alloc] initWithFrame:CGRectMake(120, 170, 80, 36)];
[pgCtr setTag:12];
pgCtr.backgroundColor = [UIColor clearColor];
pgCtr.numberOfPages=5;
pgCtr.tintColor=[UIColor redColor];
pgCtr.pageIndicatorTintColor=[UIColor blueColor];
self.pageControl.hidden=YES;
pgCtr.currentPageIndicatorTintColor = [UIColor redColor];
pgCtr.autoresizingMask=UIViewAutoresizingNone;
[cell addSubview:pgCtr];
}
else{
cell.title.text=titleArticle;
cell.title.numberOfLines=2;
why when i scroll it , the first cell is reloading ? i just want to have that scroll view only once at the beginig .
The reason your scrollview is being added again is that the cells are being reused once they are deallocated.
You should look into creating your own custom cells if you are going to display multiple cells types in one tableView, or even using two different cell identifiers depending on if the row is 0.
CellNewsInfo *cell;
if (indexPath.row == 0) {
cell = [tableView dequeueReusableCellWithIdentifier:#"scrollCell" forIndexPath:indexPath];
if ([cell viewWithTag:1]) {
scr = [cell viewWithTag:1];
}
else {
scr=[[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, 320, 200)];
scr.tag = 1;
}
// continue customization here with scrollview
}
else {
cell = [tableView dequeueReusableCellWithIdentifier:#"cell" forIndexPath:indexPath];
// continue customization here without scroll view
}
return cell;

UITableViewCell content does not show

I have delegate method that retrieves the content for each cell like this:
-(void)getRetrievedShopContentStickerName:(NSArray *)stickerNameArray price:(NSArray *)stickerPriceArray profileBackgroundImage:(NSArray *)stickerProfileBackgroundImageArray profile:(NSArray *)stickerProfileImageArray profileMenuImage:(NSArray *)stickerProfileMenuImageArray designerName:(NSArray *)designerNameArray
{
self.stickerPriceArray = [[NSMutableArray alloc] initWithArray:stickerPriceArray];
self.stickerProfileBGImageArray = [[NSMutableArray alloc] initWithArray:stickerProfileBackgroundImageArray];
NSLog(#"sticker price: %#", self.stickerPriceArray);
NSLog(#"sticker bg: %#", self.stickerProfileBGImageArray);
[self.shopTableView reloadData];
}
This delegate methods logs out a working an array as expected. This is code I used for displaying table view content:
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return self.stickerPriceArray.count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil)
{
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
AsyncImageView *backgroundImage = [[AsyncImageView alloc] initWithFrame:CGRectMake(0, 0, 300, 300)]; //does cell frame get before this method?
[backgroundImage setTag:123];
[cell.contentView addSubview:backgroundImage];
UILabel *priceLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 250, 250)];
[priceLabel setTag:124];
[priceLabel setFont:[UIFont fontWithName:#"Helvetica-Light" size:30.0f]];
[priceLabel setTextColor:[UIColor blackColor]];
[cell.contentView addSubview:priceLabel];
}
[(AsyncImageView *)[cell.contentView viewWithTag:123] loadImageWithTypeFromURL:[NSURL URLWithString:[self.stickerProfileBGImageArray objectAtIndex:indexPath.row]] contentMode:UIViewContentModeScaleAspectFit imageNameBG:nil];
[(UILabel *)[cell.contentView viewWithTag:124] setText:[self.stickerPriceArray objectAtIndex:indexPath.row]];
return cell;
}
-(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
return 100;
}
The only change I get after reloading the table view in the delegate method is the height of each tableviewcell. Why doesn't my contents show? What did I do wrong?
Thanks in advance
I accidentally set my cell's identifier in the storyboard so the if (cell == nil) was never called.

insertRowsAtIndexPaths custom style

I am trying to create a collapse table like this
My code :
- (WordListTableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *simpleTableIdentifier = #"wordListTableCell";
WordListTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
if (cell == nil) {
cell = [[WordListTableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:simpleTableIdentifier];
}
NSDictionary *uu = [wordList objectAtIndex:indexPath.row];
if(!addingNewCellFlag)
{
if([[[Singleton sharedInstance] currentLaguage] isEqualToString:#"en"])
{
cell.textLabel.text = [uu valueForKey:#"tiitle_en"];
}
else if([[[Singleton sharedInstance] currentLaguage] isEqualToString:#"ru"])
{
cell.textLabel.text = [uu valueForKey:#"tiitle_ru"];
}
UIImage *buttonImage;
if(indexPath.row==0)
{
buttonImage = [[UIImage imageNamed:#"rowFirst.png"] resizableImageWithCapInsets:UIEdgeInsetsMake(0, 5, 0, 5)];
}
else
{
buttonImage = [UIImage imageNamed:#"rowMiddle.png"];
}
cell.backgroundView = [[UIImageView alloc] initWithImage:buttonImage];
cell.textLabel.textColor = [UIColor whiteColor];
cell.textLabel.textAlignment = NSTextAlignmentCenter;
cell.isCanExpanded = TRUE;
}
else
{
if([[[Singleton sharedInstance] currentLaguage] isEqualToString:#"en"]){
cell.textLabel.text = [uu valueForKey:#"content_en"];
}
else if([[[Singleton sharedInstance] currentLaguage] isEqualToString:#"ru"])
{
cell.textLabel.text = [uu valueForKey:#"content_ru"];
}
cell.backgroundColor = [UIColor colorWithRed:253/255.0 green:252/255.0 blue:222/255.0 alpha:1];
cell.textLabel.textColor = [UIColor blackColor];
cell.textLabel.textAlignment = NSTextAlignmentJustified;
cell.isCanExpanded = FALSE;
}
[cell setIsExpanded:FALSE];
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
WordListTableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
addingNewCellFlag = TRUE;
if(cell.isCanExpanded)
{
if(![cell isExpanded]){
[cell setIsExpanded:TRUE];
NSDictionary *uu = [wordList objectAtIndex:indexPath.row];
[wordList insertObject:uu atIndex:indexPath.row+1];
[self.tableView beginUpdates];
[self.tableView insertRowsAtIndexPaths:#[[NSIndexPath indexPathForRow:indexPath.row+1 inSection:0]]
withRowAnimation:UITableViewRowAnimationTop];
[self.tableView endUpdates];
}
else if ([cell isExpanded])
{
[cell setIsExpanded:FALSE];
[wordList removeObjectAtIndex:indexPath.row+1];
[self.tableView beginUpdates];
NSIndexPath * nextIndexPath = [NSIndexPath indexPathForRow:indexPath.row+1 inSection:indexPath.section];
[self.tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:nextIndexPath] withRowAnimation:UITableViewRowAnimationTop];
[self.tableView endUpdates];
}
}
cell = nil;
}
It works, if we click on cell we create disruption cell, is the new cell has right text ([uu valueForKey:#"content_en"]), but have wrong backgroundColor (cell.backgroundView = [[UIImageView alloc] initWithImage:buttonImage];). But sometimes the backgroundColor is right ([UIColor colorWithRed:253/255.0 green:252/255.0 blue:222/255.0 alpha:1]).
Please, tell me, how does this method works.
I don't see your code in
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
Maybe it's wrong when you deal with the cells of different indexpaths.

How to change tableview cell image?

I have table view in side bar which is similar to facebook app. In my sidebar tableview i have imageview in each row. I want the imageview will be changed when i clicked the cell and it will be retain while for selecting another cell. Here is my code
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier]autorelease];
}
[[cell.contentView subviews] makeObjectsPerformSelector:#selector(removeFromSuperview)];
UIView * contentView = [[UIView alloc]initWithFrame:CGRectMake(0, 0, 320, 60)];
UIImageView * cellImg = [[UIImageView alloc]initWithFrame:CGRectMake(5,8,259, 60)];
[cellImg setImage:[UIImage imageNamed:[menuArr objectAtIndex:indexPath.row]]];
[contentView addSubview:cellImg];
[contentView setBackgroundColor:[UIColor clearColor]];
[cell.contentView addSubview:contentView];
cell.selectionStyle = UITableViewCellSelectionStyleNone;
return cell;
}
#pragma mark - Table view delegate
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
delegate.sideBarSelectedIndex = indexPath.row;
NSLog(#"delegate.sideBarSelectedIndex: %d",delegate.sideBarSelectedIndex);
[UIView commitAnimations];
if (self.sidebarDelegate) {
NSObject *object = [NSString stringWithFormat:#"ViewController%d", indexPath.row];
[self.sidebarDelegate sidebarViewController:self didSelectObject:object atIndexPath:indexPath];
[delegate.firstLensePageObj timerFunction:indexPath.row];
}
}
Try this in your didSelectRowAtIndexPath delegate method :-
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
cell.imageView.image = [UIImage imageNamed:#"yourImage"];
Try this in cellForRowAtIndexPath.
UIImageView *selectedImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"Your Image"]];
cell.selectedBackgroundView = selectedImageView;
Need to capture the selected indexpath in didSelectRowAtIndexPath: method and need to reload the tableview in that method. In cellForRowAtIndexPath need to check the selected index with current index.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier]autorelease];
}
[[cell.contentView subviews] makeObjectsPerformSelector:#selector(removeFromSuperview)];
UIView * contentView = [[UIView alloc]initWithFrame:CGRectMake(0, 0, 320, 60)];
UIImageView * cellImg = [[UIImageView alloc]initWithFrame:CGRectMake(5,8,259, 60)];
if (delegate.sideBarSelectedIndex == indexpath.row){
//Selected cell
[cellImg setImage:[UIImage imageNamed:[selectedMenuArr objectAtIndex:indexPath.row]]];
}else {
//Unselected cell
[cellImg setImage:[UIImage imageNamed:[menuArr objectAtIndex:indexPath.row]]];
}
[contentView addSubview:cellImg];
[contentView setBackgroundColor:[UIColor clearColor]];
[cell.contentView addSubview:contentView];
cell.selectionStyle = UITableViewCellSelectionStyleNone;
return cell;
}
#pragma mark - Table view delegate
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
delegate.sideBarSelectedIndex = indexPath.row;
NSLog(#"delegate.sideBarSelectedIndex: %d",delegate.sideBarSelectedIndex);
[UIView commitAnimations];
if (self.sidebarDelegate) {
NSObject *object = [NSString stringWithFormat:#"ViewController%d", indexPath.row];
[self.sidebarDelegate sidebarViewController:self didSelectObject:object atIndexPath:indexPath];
[delegate.firstLensePageObj timerFunction:indexPath.row];
}
}

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